Table 1.
Reoperation Rate of Three Groups and Indications.
| 1F group (n=206) |
2F group (n=53) |
≥3F group (n=91) |
||||||
|---|---|---|---|---|---|---|---|---|
| Age (years) | 69.6±9.6 | 70.4±8.8 | 66.4±15.0 | |||||
| Sex (Male, %) | 47.6% | 49.1% | 44.0% | |||||
| No. of patients treated with reoperation for late-phase complications | 5 (2.4%) | 6 (11.3%) | 11 (12.1%) | |||||
| Indication for reoperation and number of cases | ASD | 3 | ASD | 6 | ASD | 7 | ||
| PS loosening | 1 | Rod breaking | 2 | |||||
| Infection | 1 | PS loosening | 1 | |||||
| Infection | 1 | |||||||
| Revision surgery | Two-segment fusion | Decompression alone | 1 | Long fusion (Th-Pelvis) | 10 | |||
| Floating fusion | 3 | Screw replacement | 1 | Rod replacement | 1 | |||
| Non-floating fusion | 0 | Three-segment fusion | ||||||
| Long fusion (Th-Pelvis) | 1 | Floating fusion | 1 | |||||
| Irrigation | 1 | Non-floating fusion | 3 | |||||
Data are expressed as mean±standard deviation. 1F, 1-segment fusion; 2F, 2-segment fusion; ≥3F, ≥3-segment fusion; ASD: adjacent segment disease; PS, pedicle screw